Nova Patents
US2951908A

Telephone system for repertory dialing

Abstract

This record has no abstract on file.

US2951908A, drawing sheet 1
Sheet 1 of 146

Term

Term ended

Expired 6 September 1977, 49 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

3 claims: 3 independent, 0 dependent

  1. 1
    25 What is claimed is:1. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, common repertory memory means for stor30 ing predetermined telephone directory numbers comprising individual repertories of said subscribers, and means responsive to the dialing of predetermined repertory codes by said subscribers for establishing desired connections through said network under control of said 35 repertory memory means. (2 . The combination defined in claim 1 wherein said repertory memory means comprises a magnetic storage medium and means for recording predetermined telephone directory numbers in and reading said predeter40 mined telephone directory numbers from said medium. 3. The combination defined in claim 2 wherein said magnetic storage medium comprises a surface of magnetizable material and wherein said means for recording telephone directory numbers in and reading telephone 45 directory numbers from said medium comprises a plurality of magnetic heads. 4. In an automatic telephone system, the combination of a switching network, a subscriber line connected to said network, storage means for storing a plurality of pre50 determined telephone directory numbers, register means, means for recognizing distinct coded signals on said line, means responsive to said distinct coded signals for reading a particular directory number stored in said storage means and recording the directory number read there55 by in said register means, and means controlled by said register means for establishing a connection through said network. 5. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching 60 network, a plurality of subscriber’s lines connected to said network, common repertory memory means for storing predetermined telephone directory' numbers comprising individual repertories of certain of said subscribers, each telephone directory number in the individual reper65 tory of each of said certain of said subscribers being associated with a predetermined repertory code, determining means connected to said repertory memory means and responsive to the dialing of a repertory code by any of said certain of said subscribers for determining the 70 telephone directory number associated with the dialed For example, several nonrepertory calls and several repertory calls as well as several repertory vertification and several repertory change calls may be carried out simultaneously without interference. While certain translating and registration functions 75 repertory code and means controlled by said determining means for establishing a desired connection through said network in accordance with the telephone directory number determined thereby. 6. The combination defined in claim 5 wherein said 3,951,908 89 repertory memory means comprises a continuously rotating surface of a magnetizable material and wherein said determining means includes a plurality of magnetic heads tor reading telephone directory number manifestations recorded on said surface. 7. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, common repertory memory means for storing telephone directory numbers comprising individual repertories of said subscribers, each telephone directory number in the individual repertory of each subscriber being associated with a predetermined repertory code, means, for recognizing the repertory codes dialed by said subscribers, determining means connected to said repertory memory means and controlled by said recognizing means for determining the telephone directory numbers associated with dialed repertory codes, register means, means for registering in said register means said telephone directory numbers determined by said determining means, and means controlled by said register means for establishing connections through said network. 8. The combination defined in claim 7 wherein said common repertory memory means comprises a continuously rotating magnetic drum, wherein said determining means includes a plurality of magnetic heads associated with said drum, and wherein said register means comprises a second continuously rotating magnetic drum. 9. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, the. subscribers of certain of said lines being repertory dialing subscribers, common repertory memory means for storing the telephone directory numbers comprising the individual repertories of said repertory. dialing subscribers, each telephone directory number in. the individual repertory of each repertory dialing subscriber being associated With a predetermined repertory code, register means for receiving, accumulating and registering signal pulses representing digits dialed by said subscribers, detecting means connected to said register means and operative When the digits registered therein correspond to a repertory code, determining means connected to said repertory memory means and controlled by said detecting means and said register means for determining the telephone directory numbers associated with .dialed repertory codes, means controlled by said determining means for registering the telephone directory numbers determined thereby in s-aid register means, and means controlled by said register means for establishing a connection through said network. 10. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lilies connected to . said network, the subscribers of certain of said lines being repertory dialing subscribers, common repertory memory means for storing the telephone directory numbers comprising the individual repertories of all of said repertory dialing subscribers, each telephone directory number in die individual repertory of each repertory dialing subscriber being associated with a predetermined repertory code, register means for receiving, accumulating and registering signal pulses representing digits dialed by said subscribers, detecting means connected to said register means and operative when the digits registered therein correspond to a repertory code, checking means controlled by said detecting means to determine that said repertory code registered in said register means was received over a subscriber line entitled to repertory dialing service, determining means connected to said repertory memory means and controlled by said checking means and said register means for determining the telephone directory numbers associated with dialed repertory codes, means controlled by said determining means for registering the telephone directory numbers determined thereby in said register means and means’ controlled by said register means for establishing a connection through said network. 11. In an automatic telephone system, the combination comprising a plurality of subscriber’s lines connected to said system, each of said lines characterized by a distinct directory number, detecting means for detecting coded signal pulses on said lines, certain of said coded signal pulses representing directory numbers of called ones of said lines, a storage medium for storing directory numbers of predetermined ones of said lines, control means responsive to coded signals for establishing a connection through said system between a calling one of said lines and a called one of said lines, means controlled by said detecting means for transmitting coded signals representing directory numbers detected thereby to said control means, and means controlled by said detecting means and responsive to distinct coded signal pulses detected thereby for selectively transmitting to said । control means coded signals representing said directory numbers stored in said storage medium. 12. In an automatic telephone system arranged for repertory dialing, the combination of a switching network, a subscriber line connected to said network, said subscriber line characterized by a distinctive equipment number, first register means for registering said equipment number, storage means for storing predetermined telephone directory numbers, a second register means, reading means responsive to distinct coded signals on said line and controlled by said equipment number registered in said first register means for reading a particular one of said directory numbers stored in said storage medium, means controlled by said reading means for recording the directory number read thereby in said second register means, and means controlled by said second register means for establishing a connection through said network. 13. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, each of said lines characterized by a distinctive line equipment number and a distinctive telephone directory number, storage means for storing the equipment numbers of said lines, a common repertory memory medium for storing telephone directory numbers comprising the individual repertories of said subscribers, each telephone directory number in the repertories of said subscribers being associated with a predetermined digital repertory code, said medium divided into a plurality of areas and each of said areas individually assigned to a respective one of said subscribers, register means for registering digit signals applied to said lines by calling subscribers, first determining means connected to said storage means for determining the equipment number of a calling subscriber’s line, detecting means connected to said register means and operative when the digit signals registered therein correspond to a repertory code, means controlled by said first determining means and said detecting means for locating the particular area in said medium assigned to a calling subscriber’s line, second determining means controlled by said detecting means and said register means for determining from the particular repertory area in said medium assigned to said calling subscriber’s line the telephone directory number associated with the repertory code registered in said register means, and means controlled by said second determining means for establishing a connection through said switching network. 14. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, each of said lines characterized by a distinctive equipment number and a distinctive telephone directory number, certain of said lines assigned to repertory dialing subscribers, storage means for storing the equipment numbers of said lines, a common repertory
  2. 2
    2,951,908 91 memory medium for storing telephone directory numbers comprising the individual repertories of said repertory dialing subscribers, each telephone directory number in the repertories of said repertory dialing subscribers being associated with a predetermined digital repertory code, said medium divided into a plurality of areas, each of said areas identified by the equipment number of one of said certain of said lines stored therein and individually assigned to a respective one of said repertory dialing subscribers, register means, means for registering digit signals applied to said lines by calling subscribers in said register means, first determining means connected to said storage means for determining the equipment number of a calling subscriber’s line, means controlled by said first determining means for recording the equipment number determined thereby in said register means, detecting means connected to said register means and operative when the digit signals registered therein correspond to a repertory code, means controlled by said register means for locating the particular area in said medium assigned to a calling repertory dialing subscriber, second determining means controlled by said detecting means and said register means for determining from the particular repertory area in said medium assigned to a calling repertory dialing subscriber the telephone directory number associated with the repertory code registered in said register means, means controlled by said second determining means for recording the telephone directory number determined thereby in said register means, and means controlled by said register means for establishing a connection through said switching network. 15. The combination defined in claim 14 wherein said common repertory memory medium comprises a continuously rotating magnetic drum, wherein said plurality of areas on said medium comprises a plurality of areas on the surface of said magnetic drum, and wherein each of said areas comprises a plurality of slots on said drum, each of said slots adapted to register a telephone directory number and its associated repertory code. _ 16. The combination defined in claim 15 wherein said means controlled by said register means for locating the particular area on said dram assigned to a calling repertory dialing subscriber comprises means for matching the equipment number of said calling repertory dialing subscriber’s line registered in said register means with equipment numbers recorded in the individual areas on said magnetic drum, said means operative when a match is obtained, and wherein said second determining means controlled by said detecting means and said register means for determining from the particular area on said drum assigned to a calling repertory dialing subscriber the telephone directory number associated with the repertory code registered in said register means comprises means for matching the repertory code registered in said register means with the repertory codes recorded in the area on said magnetic drum assigned to said calling repertory dialing subscriber, said means operative when a match is obtained to read the recorded telephone directory number associated therewith. 17. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, common repertory memory means for storing predetermined telephone directory numbers comprising individual repertories of said subscribers, each of said predetermined telephone directory numbers being stored in said repertory memory means in association with a predetermined repertory code stored therein, means responsive to the dialing of said predetermined repertory codes by said subscribers for establishing desired connections through said network under control of said repertory memory means, and means for changing said predetermined telephone directory numbers stored in said repertory memory means, said last-named means comprising register means, means responsive to the dialing of a predetermined repertory change code by any of said subscribers for temporarily connecting said register means to the line serving said one of said subscribers, means operative thereafter in response to the dialing by said 5 one of said subscribers of a repertory code for which a change is desired and a new telephone directory number to be associated therewith for registering the dialed repertory code and the new telephone directory number in said register means, and means controlled by said register 10 means for storing said new telephone directory number in said common repertory memory means. . 18. The combination defined in claim 17 wherein said last-named means comprises means for matching said dialed repertory code registered in said register means 15 with said repertory codes stored in said common repertory memory means, means operative when a match is detected and means controlled thereby for storing said new telephone directory number registered in said register means in an area of said common repertory memory 20 means associated with said dialed repertory code. 19. The combination defined in claim 17 wherein said common repertory memory means comprises a continuously rotating surface of a magnetizable material and wherein said means for changing said predetermined tele25 phone directory numbers stored in said repertory memory means includes a plurality of magnetic heads for recording telephone directory numbers on said surface. 20. In an automatic telephone system, the combination of a switching network, a subscriber line connected 30 to said network, storage means for storing a plurality· of predetermined telephone directory numbers, detecting means for recognizing coded signals on said line, means controlled by said detecting means and responsive to coded signals of a first type on said line for selectively 35 establishing connections through said network under control of said directory numbers stored in said storage means, and means controlled by said detecting means and responsive to coded signals of a second type on said line for storing predetermined telephone directory numbers 40 in said storage means. 21. In an automatic telephone system arranged for repertory dialing, the combination of a switching network, a subscriber line connected to said network, said subscriber line characterized by a distinctive equipment number, first register means for registering said equipment 48 number, storage means for storing predetermined telephone directory numbers, second register means, detecting means responsive to distinct coded signals on said line for connecting said second register means thereto, means controlled by said detecting means and responsive 80 to coded signals representing a telephone directory number on said line for registering said telephone directory number in said second register means, and means controlled by said second register means and said equipment number registered in said first register means for 80 storing said telephone directory number registered in said second register means in said storage means. 22. In an automatic telephone system arranged for repertory dialing, the combination comprising a plurality of subscriber’s lines, common repertory memory means 60 for storing telephone directory numbers comprising the individual repertories of said subscribers, each telephone directory number stored in said repertory memory means being associated with a predetermined repertory code stored therein, and means responsive to dialing by said 68 subscribers over said lines, for changing the telephone directory numbers associated with said repertory codes stored in said repertory memory means. 23. The combination defined in claim 22 wherein said γθ last-named means comprises detecting means for detecting predetermined signal pulses on any of said lines indicating that a repertory change is desired by a subscriber, register means controlled by said detecting means when operated for receiving, accumulating and temporarily 75 registering the successive signal pulses representing the 2,951,908 repertory code for which a change is desired and the new telephone directory number to be associated therewith when dialed by said subscriber, and means controlled by said register means for storing said new telephone directory number in said repertory memory means. 5 24. The combination defined in claim 22 wherein said common repertory memory means comprises a continuously rotating magnetic drum. 25. In an automatic telephone system arranged for repertory dialing, the combination comprising a plurality of 10 subscriber’s lines, a common repertory memory medium for storing predetermined telephone directory numbers comprising individual repertories of said subscribers, said medium divided into a plurality of areas individually assigned. to a respective one of said subscribers, each of said 15 subscribers assigned a plurality of predetermined repertory codes to be individually associated with the respective telephone directory numbers in the individual repertory thereof, each of said repertory codes for each of said subscribers recorded in the area of said medium 20 assigned thereto in association with the predetermined telephone directory number assigned thereto by said subscribers, means controlled by said subscribers for storing said predetermined telephone directory numbers in the area of said medium individually assigned thereto, said 25 last-named means comprising detecting means for detecting predetermined signal pulses on any of said lines indicating that the one of said subscribers served thereby desires to store a telephone directory number in the area bn said medium assigned thereto, register means, means 30 controlled by said detecting means for connecting said register means to the line serving said one of said subscribers, means responsive to successive dialed signal pulses representing said repertory code and said telephone directory number to be associated therewith for register- 35 ing the dialed repertory code and the dialed telephone directory number in said register means, means controlled by said detecting means for locating the particular area in said common repertory memory medium assigned to said one of said subscribers, and means controlled by said 40 register means for storing said telephone directory number registered therein in said repertory memory medium. 26. In an automatic telephone system arranged for repertory .dialing, the combination comprising a plurality of subscriber’s lines, each of said lines characterized by a distinctive equipment number and a distinctive telephone 4S directory number, certain of said lines assigned to repertory dialing subscribers, storage means for storing the equipment numbers of said lines, a common repertory memory medium for storing predetermined telephone directory numbers comprising the individual repertories of 50 said repertory dialing subscribers, each telephone directory number in the repertories of said repertory dialing subscribers being associated with a predetermined digital repertory code recorded in said repertory memory medium, said medium divided into a plurality of areas, each 55 of said areas identified by the equipment number stored therein of one of said certain of said lines and individually assigned to a respective one of said repertory dialing subscribers, first register means, means for registering certain digit signals applied to said lines by calling sub- 60 scribers in said first register means, first determining means connected to said storage means for determining the equipment number of a calling subscriber’s line, means controlled by said first determining means for recording the equipment number determined thereby in said first 63 register means, detecting means connected to said first register means and operative when the digit signals registered therein correspond to a predetermined repertory change code dialed by one of said repertory dialing subscribers, second register means, means controlled by said 70 detecting means for connecting said second register means to the line serving said one of said repertory dialing subscribers, means for receiving, accumulating and registering in said second register means the successive signal pulses representing a repertory code and a predetermined 75 telephone directory number to be associated therewith dialed, thereafter by said one of said repertory dialing subscribers, means controlled by said first register means for locating the particular area in said medium assigned to said one of said repertory dialing subscribers, and means controlled by said second register means for recording the telephone directory number registered therein in the particular area of said repertory memory medium assigned to said.one of said repertory dialing subscribers in association with the particular repertory code dialed by said one of said repertory dialing subscribers. 27. The combination defined in claim 26 wherein said means controlled by said detecting means also includes means for transmitting a signal tone to said one of said repertory dialing subscribers over the line assigned thereto to indicate that the subscriber may proceed to dial a repertory code and a telephone directory number to be associated therewith. 28. The combination defined in claim 27 wherein said common repertory memory .medium comprises a continuously rotating magnetic drum, wherein said plurality of areas in said medium comprise a plurality of areas on the surface of said magnetic drum, and wherein each of said areas comprises a plurality of slots on said drum, each of said slots adapted to register a telephone directory number and its associated repertory code. 29. The combination defined in claim 28 wherein said means controlled by said first register means for locating the particular area on said magnetic drum assigned to said one of said repertory dialing subscribers comprises means for matching the equipment number of the line assigned to said one of said repertory dialing subscribers with the equipment numbers recorded in the individual areas on said magnetic drum, said means operating when a match is detected, and wherein said means controlled by said second register means for recording the telephone directory number registered therein in the particular area on said magnetic drum assigned to said one of said repertory dialing subscribers in association with the particular repertory code dialed by said one of said repertory dialing subscribers comprises means for matching the repertory code registered in said second register means with the repertory codes recorded in the individual slots of the area on said magnetic drum assigned to said one of said repertory dialing subscribers, and means operative when a match is detected for recording the telephone directory number registered in said second register means in the slot on said drum in which the dialed repertory code is recorded. 30. In an automatic telephone system arranged for repertory dialing, the combination comprising a switching network, a plurality of subscriber’s lines connected to said network, common repertory memory means for storing predetermined telephone directory numbers comprising individual repertories of said subscribers, each of said predetermined telephone directory numbers being stored in said repertory memory means in association with a predetermined repertory code stored therein, means responsive to the dialing of said predetermined repertory codes by said subscribers for establishing desired connections through said network under control of said repertory memory means, and means for verifying said predetermined telephone directory numbers stored in said repertory memory means, said last-named means comprising register means, means responsive to the dialing of a predetermined repertory verification code by any one of said subscribers for temporarily connecting said register means to the line serving said one of said subscribers, means operative thereafter in response to the dialing by said one of said subscribers of a repertory code for which a verification is desired for registering said repertory code in said register means, and verification means controlled by said register means for transmitting to said one of said subscribers a verification of the telephone directory number stored in said common repertory memory means in association with the dialed repertory code. 2.951,908 40. In an automatic telephone system arranged for repertory dialing, the combination comprising a plurality of subscriber’s lines, a common repertory memory medium for storing predetermined telephone directory numbers 5 comprising individual repertories of said subscribers, said medium divided into a plurality of areas individually assigned to a respective one of said subscribers, each of said subscribers assigned a plurality of predetermined repertory codes associated with the respective telephone directory 10 numbers in the individual repertory thereof, each of said repertory codes of each of said subscribers recorded in the area of said medium assigned thereto in association with the predetermined telephone directory number assigned thereto by said subscribers, means controlled by 15 said subscribers for determining the telephone directop' numbers associated with any particular repertory code in their respective repertories, said last-named means comprising detecting means for detecting predetermined signal pulses on any of said lines indicating that the one of said 20 subscribers served thereby desires to determine a telephone directory number assigned to a particular repertory code in his repertory, register means, means controlled by said detecting means for connecting said register means to the line serving said one of said subscribers, means re25 sponsive to dialed signal pulses representing the repertory code which said one of said subscribers desires to determine for registering the dialed repertory code in said register means, means controlled by said detecting means for locating the particular area in said common repertory 30 memory medium assigned to said one of said subscribers, means controlled by said register means for determining the telephone directory number stored in said repertory memory medium in association with said dialed repertory code, and announcement means controlled by said de35 termining means for transmitting an audible announcement of said telephone directory number determined by said determining means to said one of said subscribers over the line assigned thereto. 41. The combination defined in claim 40 wherein said 40 common repertory memory means comprises a continuously rotating magnetic drum and a plurality of magnetic heads. 42. The combination defined in claim 41 wherein said announcement means comprises a continuously rotating 45 voice recorded announcement drum and a plurality of magnetic pickup heads. 43. In an automatic telephone system arranged for repertory dialing, the combination comprising a plurality of subscriber’s lines, each of said lines characterized 50 by a distinctive equipment number and a distinctive telephone directory number, certain of said lines assigned to repertory dialing subscribers, storage means for storing the equipment numbers of said lines, a common repertory memory medium for storing predetermined tele55 phone directory numbers comprising the individual repertories of said repertory dialing subscribers, each telephone directory number in the repertories of said repertory dialing subscribers being associated with a predetermined digital repertory code recorded in said repertory 0Q medium, said medium divided into a plurality of areas, each of said areas identified by the equipment number stored therein of one of said certain of said lines and individually assigned to a respective one of said repertory dialing subscribers, first register means, means for regis05 tering certain digit signals applied to said lines by calling subscribers in said first register means, first determining means connected to said storage means for determining the equipment number of a calling subscriber’s line, means controlled by said first determining means for recording the equipment number determined thereby in said first register means, detecting means connected to said first register means and operative when the digit signals registered therein correspond to a predetermined repertory verification code dialed by one of said repertory 75 dialing subscribers, second register means, means con- 31. The combination defined in claim 30 wherein said verification means comprises means for matching the dialed repertory code registered in said register means with said repertory codes stored in said common repertory memory means, means operative when a match is detected, and means controlled thereby for transmitting to said one of said subscribers an audible announcement of the telephone directory number stored in said common repertory memory means in association with said dialed repertory code. 32. The combination defined in claim 30 wherein said common repertory memory means comprises a continuously rotating surface of a magnetizable material and wherein said means for verifying said predetermined telephone directory numbers stored in said repertory memory means includes a plurality of magnetic heads for reading said telephone directory numbers recorded on said surface. 33. In an automatic telephone system arranged for repertory dialing, the combination of a switching network, a subscriber line connected to said network, said subscriber line characterized by a distinctive equipment number, first register means for registering said equipment number, storage means for storing predetermined telephone directory numbers, second register means, means responsive to distinct coded signals on said line and controlled by said equipment number registered in said first register means for selectively registering in said second register means predetermined telephone directory numbers stored in said storage means, and means controlled by said second register means for applying an audible announcement of the directory numbers registered in said second register means to said line. 34. In an automatic telephone system arranged for repertory dialing, the combination comprising a plurality of subscriber’s lines, common repertory memory means for storing telephone directory numbers comprising the individual repertories of said subscribers, each telephone directory number stored in said repertory memory means being associated with a predetermined repertory code stored therein, and determining means responsive to dialing by said subscribers over said lines for determining the telephone directory numbers associated with said repertory codes stored in said repertory memory means. 35. The combination defined in claim 34 wherein said determining means includes announcement means for transmitting audible announcements of said telephone directory numbers over said lines. 36. The combination defined in claim 34 wherein said determining means comprises detecting means for detecting predetermined signal pulses on any of said lines indicating that the subscriber served thereby desires, to determine the telephone directory number stored in said common repertory memory means in association with a particular repertory code, register means controlled by said detecting means when operated for receiving, accumulating, and temporarily registering signal pulses representing said particular repertory code when dialed by said subscriber, an announcement means controlled by said register means and said common repertory memory means for transmitting an audible announcement of the, telephone directory number associated with said particular repertory code to said subscriber. 37. The combination defined in claim 36 wherein said announcement means includes a surface of magnetizable material, a plurality of magnetic pickup heads, and means producing relative motion between said surface and said heads. 38. The combination defined in claim 36 wherein said announcement means includes a continuously rotating surface of magnetizable material and a plurality of magnetic pickup heads. 39. The combination defined in claim 38 wherein said surface of magnetizable material comprises a continuously rotating magnetic drum.
  3. 3
    3,951,908 trplled by said detecting means for connecting said second register means to the line serving said one of said repertory dialing subscribers, means for receiving, accumulating and registering in said second register means the signal pulses representing a repertory code when dialed thereafter by said one of said repertory dialing subscribers, means controlled by said first register means for locating the particular area in said medium assigned to said, one of said repertory dialing subscribers, second determining means controlled by said second register means for determining the particular telephone directory number recorded in the area of said repertory memory medium assigned to said one of said repertory dialing subscribers in association with the particular repertory code dialed thereby, and means controlled by said second determining means for transmitting an audible announcement of said telephone directory number determined thereby to said one of said repertory dialing subscribers over the line assigned thereto. 44. The combination defined in claim 43 wherein said means controlled by said detecting means also includes means for transmitting a signal tone to said one of said repertory dialing subscribers over the line assigned thereto to indicate that the subscriber may proceed to dial the repertory code for which an audible announcement of the telephone directory number assigned thereto is desired. 45, The combination defined in claim 43 wherein said common repertory memory medium comprises a continuously rotating magnetic drum, wherein said plurality of areas in said medium comprises a plurality of areas on the surface of said magnetic drum, and wherein each of said areas comprises a plurality of slots on said drum, each of said slots adapted to register a telephone directory number and its associated repertory code. 46. The combination defined in claim 45 wherein said means controlled by said first register means for locating the particular area on said magnetic drum assigned to said one of said repertory dialing subscribers comprises means for matching the equipment number of the line assigned to said one of said repertory dialing subscribers with the equipment numbers recorded in the individual areas on said magnetic drum, said means operating when a match is detected, and wherein said second determining means controlled by said second register means for determining the particular telephone directory number recorded in the area on said magnetic drum assigned to said one of said repertory dialing subscribers in association with the particular repertory code dialed thereby, comprises means for matching the repertory code registered in said second register means with the repertory codes recorded in the individual slots of the area on said magnetic drum assigned to said one of said repertory dialing subscribers, and reading means operative when a match is detected for reading the telephone directory number associated with the particular repertory code dialed by said one of said repertory dialing subscribers and recorded in the slot assigned thereto on said magnetic drum, and further wherein said means controlled by said second determining means for transmitting an audible announcement of said telephone directory number determined thereby to said one of said repertory dialing subscribers over the line assigned thereto comprises means for registering said telephone directory number read by said reading means in said second , register means, a continuously rotating voice-recorded announcement drum containing a plurality of recorded audible word announcements, means connected to said register means and said announcement drum for selectively transmitting audible word announcements of the > telephone directory number registered in said second register means to said one of said repertory dialing subscribers over the line assigned thereto. 47. In an automatic telephone system arranged for repertory dialing, the combination comprising a switch- ' ing network, a plurality of subscriber’s lifles connected to said network, common repertory memory means for storing predetermined telephone directory numbers comprising individual repertories of said subscribers, each telephone directory number in ’ the repertories of said subscribers being associated with a predetermined.repertory code, switching means for completing connections through said network, means responsive to the dialing of telephone directory numbers by said subscribers for I controlling said switching means to complete desired connections through said network, and means responsive to the dialing of said predetermined repertory codes by said subscribers and controlled by said common repertory memory means for controlling said switching means to ;complete desired connections through said network. 48. The combination defined in claim 47 wherein said common repertory memory means comprises a surface of magnetizable material, a plurality of magnetic heads, and means producing relative motion between said suri face and said heads. , 49. The combination defined in claim 47 in combination with repertory change means operative to change said telephone directory numbers stored in said common repertory memory means in association with said repertory codes, said repertory change means comprising first means operative in response to the dialing of a predetermined repertory change code by any one of said subscribers, second means controlled by said first means and operative in response to the successive dialing of a repertory code for which a change is desired and a telephone directory number to be associated therewith by said one of said subscribers for storing the dialed telephone directory number in said common repertory memory means in association with the dialed, repertory code. 50. The combination defined in claim 49 wherein said repertory change means also comprises means controlled by said first means when operated for transmitting a signal tone to said one of said subscribers to indicate that a repertory change may be made, and means controlled by said second means and operative when a repertory change has been completed for transmitting a signal tone to said one of said subscribers to indicate that an additional repertory change may be made. 51. The combination defined in claim 49 in combination with repertory verification means operative to transmit an audible announcement of said telephone directory numbers stored in said common repertory memory means in association with said repertory codes to said subscribers, said repertory verification means comprising first means operative in response to the dialing of a predetermined repertory verification code by any one of said subscribers, second means controlled by said first means and operative in response to the dialing of a repertory code for, which a verification is desired for determining from said common repertory memory means the telephone directory number associated therewith, and announcement means controlled by said second means for transmitting an audible announcement of the telephone directory number determined thereby. 52. The combination defined in claim 51 wherein said repertory verification means also comprises means controlled by said first means when operated for transmitting a signal tone to said one of said subscribers to indicate that a repertory verification may be made, and means controlled by said second means and operative when a repertory verification has been completed for transmitting a signal tone to said one of said subscribers to indicate that an additional repertory verification may be made. 53. The combination defined in claim 52 wherein said announcement means comprises a continuously rotating voice recorded announcement drum having a plurality of channels, each of said channels containing a plurality of voice announcements recorded therein, a plurality 2,951,908 of pickup devices each associated with a respective one of said channels on said drum, and means connected to said pickup devices and controlled by said second means for selectively transmitting said voice announcements to said one of said subscribers. 54. The combination defined in claim 53 wherein said voice announcements in said channels comprise voice recorded numerical word announcemets and wherein said numerical word announcements recorded in each of said channels are separated by distinctive start indicia re 100 corded therein and wherein said means controlled by said second means also includes means responsive to said start indicia. References Cited in the file of this patent UNITED STATES PATENTS 1,738,624 Wicks ________________Dec. 10, 1929 10 2,564,441 McKim et al.-------— Aug. 14, 1951
Independent claims3